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Allowance for Credit Losses - Summary of Activity for Accretable Yield of Purchased Credit-impaired Loan (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($)
Allowance for Credit Loss [Abstract] |
Accretable yield, beginning of period | $ 307
Accretion of income | (151)
Other changes, net | $ (156)

X
- Definition Accretable yield. + References No definition available. + Details
Name: | lnkb_AccretableYield
Namespace Prefix: | lnkb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Accretable Yield, Other Changes, Net + References No definition available. + Details
Name: | lnkb_AccretableYieldOtherChangesNet
Namespace Prefix: | lnkb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Accretion of income + References No definition available. + Details
Name: | lnkb_AccretionOfIncome
Namespace Prefix: | lnkb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AllowanceForCreditLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration